In other words, people aren't saying there is anything special or out of the ordinary. It seems you might be the only one who does. You can't assume no one has heard them. You may be able to claim no one has posted anything about them, but more accurately, you haven't found anyone that has (not that no one has.) Anyway, yes, there were posts very early on about some of the comments from people in the tower - about how they made no sense and referenced things that didn't make it to the final launch version. If after 3+ months you can be sure people have heard what is able to be heard. As far as anything else, my assumption is no one really thought there was anything secretive or that they are hearing things others aren't. Because, they do hear them, they may chuckle, or just brush it off as part of the game.